W978H2KBVX数据手册集成电路（IC）的存储器规格书PDF

描述 Description

This is a 256Mb Low Power DDR2 SDRAM organized as 4M words x 4 banks x 32bits

特性 Features

•Power supply VDD1 = 1.7V~1.95V、VDD2/VDDCA/VDDQ = 1.14V~1.30V
• Data width: x32
• Burst Type: Sequential or Interleave、Clock rate : 400MHz, 533MHz
• Standard Self Refresh Mode
• PASR、ATCSR、Power Down Mode、DPD
• Programmable output buffer driver strength
• Four internal banks for concurrent operation
• Burst Length: 4 、8 and 16
• Operating Temperature Range: Extended (-25°C ~ 85°C), Industrial (-40°C ~ 85°C)
• Bidirectional, data strobe (DQS) is transmitted or received with data, to be used in capturing data at the receiver
• Package:134 BGA